Observing Intersection Observers

As developing for the web has matured and JavaScript engines have become faster, one area remains a significant bottleneck – rendering. It’s because of this that so many of the recent development efforts have been focused around rendering, with virtual DOM being one of the more popular examples. In Dojo 2, being aware of these new APIs and approaches has been a priority. But working with a new API has its challenges and the Intersection Observer API is no different.